LEMON Manuals: Even more car manuals for everyone
Home >> Porsche >> 2016 >> Cayman Base, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 153 (46 - Brakes - Brake Mechanics -- CARRERA (997)) >> WM 465102 Checking Front PCCB Brake Discs (Wear Assessment) (All Models) >> Checking Information On PCCB Brake Discs >> General Information On Replacing Worn PCCB Brake Discs

General Information On Replacing Worn PCCB Brake Discs

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2013 Porsche 911, 2012 Porsche 911, 2011 Porsche 911, 2010 Porsche 911, and 2009 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.

Three criteria governing the condition of the parts can make replacement necessary depending on the wear of PCCB brake discs: 

  1. Surface changes in the brake disc friction surfaces (material fatigue/wear) at an advanced stage (indication of wear: associated friction surface damage > 1 cm2 ).
  2. Surface roughness of the brake disc friction surfaces too great (roughness depends on mileage and load).
  3. Brake disc minimum thickness is not attained due to wear (material erosion due to friction).
    • In practice, all three forms of brake disc erosion usually occur.
    • Only in rare cases (in the case of long-term race driving brake loads/very high temperatures on the friction surfaces) does the surface change so quickly that a premature brake disc change has to be performed.
    • Blue discs on the brake disc chamber and/or strongly colored brake calipers indicate a long-term, sustained high load, on a racing circuit, for example.


Three criteria governing the condition of the parts can make replacement necessary depending on the wear of PCCB brake discs: 

  1. Surface changes in the brake disc friction surfaces (material fatigue/wear) at an advanced stage (indication of wear: associated friction surface damage > 1 cm2 ).
  2. Surface roughness of the brake disc friction surfaces too great (roughness depends on mileage and load).
  3. Brake disc minimum thickness is not attained due to wear (material erosion due to friction).
    • In practice, all three forms of brake disc erosion usually occur.
    • Only in rare cases (in the case of long-term race driving brake loads/very high temperatures on the friction surfaces) does the surface change so quickly that a premature brake disc change has to be performed.
    • Blue discs on the brake disc chamber and/or strongly colored brake calipers indicate a long-term, sustained high load, on a racing circuit, for example.
scientia non olet · About LEMON Manuals